Attributes are not affected by the Sale Discount Price when a New Price is used.

NOTE: Select from below is defined as a Display Only Attribute and NOT to be included in the base price.

The Display Only means, the customer may NOT select this option value. If they do not selected another option value, then the product cannot be added to the shopping cart.

The NOT included in base price means, if this product were priced by attributes, it would not be include. The reason for this is so that the lowest price of this group will be the Small at $50.00 and not Select from Below at $0.00